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Volume 7 Issue 1
Feb.  2016
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WU Jiping, DENG Gengfeng, DENG Liangliang, LIN Chengxing, PAN Xianbing. Rare Earth recovery from NdFeB magnet scrap[J]. Nonferrous Metals Science and Engineering, 2016, 7(1): 119-124. DOI: 10.13264/j.cnki.ysjskx.2016.01.022
Citation: WU Jiping, DENG Gengfeng, DENG Liangliang, LIN Chengxing, PAN Xianbing. Rare Earth recovery from NdFeB magnet scrap[J]. Nonferrous Metals Science and Engineering, 2016, 7(1): 119-124. DOI: 10.13264/j.cnki.ysjskx.2016.01.022
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Rare Earth recovery from NdFeB magnet scrap

  • School of Metallurgical and Chemical Engineering, Jiangxi University of Science and Technology, Ganzhou 34100, China

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  • Received Date: September 29, 2015
  • Published Date: February 28, 2016
    Graphical Abstract
    • Abstract
  • The rare earth(RE) extraction conditions from Nd-Fe-B magnet scrap were studied by oxidation roasting -hydrochloric acid decomposition.The influence of calcination temperature and time on the iron oxidation rate was discussed in the roasting process. In the leaching process, the effects of hydrochloric acid concentration, reaction time, reaction temperature and liquid to solid ratio on leaching rate of rare earth were investigated too, and the influence of pH and the aging time of the impurity on the leaching liquid were analyzed. The results show that the oxidation rate of iron reaches maximum with calcining at 700 ℃ for 1.5 hours, and iron is completely oxidated to the trivalent iron. The RE leaching rate reaches 99.33% at the optimum conditions. After change the pH to 3.5 and the aging time to more than 2 hours for neutralization process, little impurities of Cu, Pb, Co and Fe are dissolved in the leaching solution. The Fe content in the leaching solution is only 0.0014 g/L, the rare earth leaching solution meets the requirements of RE extraction.
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    • References (18)
  • [1]
    冯瑞华, 姜山, 马廷灿, 等.我国稀土永磁材料发展战略和建议[J].科技管理研究, 2012, (15):164-167. http://www.cnki.com.cn/Article/CJFDTOTAL-KJGL201215038.htm
    [2]
    黄劲松, 齐美富.钕铁硼废料资源化利用工艺综述[J].中国资源综合利用, 2008, 26(11):4-5. http://www.cnki.com.cn/Article/CJFDTOTAL-ZWZS200811007.htm
    [3]
    许涛, 李敏, 张春新.钕铁硼废料中钕、镝及钴的回收[J].稀土, 2004, 25(2):31-34. http://www.cnki.com.cn/Article/CJFDTOTAL-XTZZ200402010.htm
    [4]
    郑明贵, 陈艳红.世界稀土资源供需现状与中国产业政策研究[J].有色金属科学与工程, 2012, 3(4):70-74. http://ysjskx.paperopen.com/oa/DArticle.aspx?type=view&id=201204012
    [5]
    SAITO T., SATO H., OZAWA S., et al. The extraction of Nd from waste Nd-Fe-B alloys by the glass slag method[J]. Journal of Alloys and Compounds: An Interdisciplinary Journal of Materials Science and Solid-state Chemistry and Physics, 2003, 353(1):189-193. http://www.sciencedirect.com/science/article/pii/S0925838802012021
    [6]
    HONG J C, BUM S K, TAE B K. Selective extraction of Nd from Nd-Fe-B magnetic scraps by using liquid metal extraction (LME) method[J], Rare earth, 2012, (TN.60):36-37. http://ci.nii.ac.jp/naid/10030627848
    [7]
    JAN P R, WILLIAM T, YASUSHI T, et al. Recovery of Nd and Dy from rare earth magnetic waste sludge by hydrometallurgical process[J]. Journal of Material Cycles and Waste Management, 2013, 15(2):171-178. doi: 10.1007/s10163-012-0105-6
    [8]
    肖荣晖.钕铁硼生产中废料的回收及利用[J].有色冶炼, 2001, (1):23-25. http://www.cnki.com.cn/Article/CJFDTOTAL-YSYL200101008.htm
    [9]
    林河成.利用钕铁硼废料制备氧化钕[J].上海有色金属, 2006, 27 (3):17-20. http://www.cnki.com.cn/Article/CJFDTOTAL-SHHA200603003.htm
    [10]
    郝志平.氟化物法回收钕铁硼稀土永磁废料[P].中国专利:CN 1077993A, 1993. http://www.doc88.com/p-177329352680.html
    [11]
    陈云锦.全萃取法回收钕铁硼废渣中的稀土与钴[J].中国资源综合利用, 2006 (4):10-13. http://www.cnki.com.cn/Article/CJFDTOTAL-ZWZS200406007.htm
    [12]
    张礼刚.从钕铁硼废料中提取钕的方法[P]. CN 1058232, 1992. http://d.wanfangdata.com.cn/Patent/CN90105498.4/
    [13]
    高励珍, 王东杰, 郝茜, 等.重铬酸钾容量法测定镝铁合金中的铁量[J].稀土, 2009, 30(6):74-77. http://www.cnki.com.cn/Article/CJFDTOTAL-XTZZ200906022.htm
    [14]
    GB/T14635.1-1993, 稀土金属及其化合物化学分析方法草酸盐重量法测定稀土总量[s]. http://d.wanfangdata.com.cn/Standard/GB/T%2014635-2008
    [15]
    GB/T18115.1-2006, 稀土金属及其氧化物中稀土杂质化学分析方法[s].
    [16]
    杨春、梁萍、张颖, 等.无机化学实验[M].天津:南开大学出版社, 2007:207
    [17]
    黄礼煌.稀土提取技术[M]:北京:冶金工业出版社, 2010:19
    [18]
    吕庆, 亢立明, 刘曙光, 等.冀东磁铁精矿球团焙烧机理的研究[J].钢铁研究, 2008, 36(1):9-12. http://www.cnki.com.cn/Article/CJFDTOTAL-GTYJ200801002.htm
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